7,956 Result(s)
within
Qi** Shi
Engineering
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Article
Autonomous navigation of an asteroid orbiter enhanced by a beacon satellite in a high-altitude orbit
This study aims to assess the autonomous navigation performance of an asteroid orbiter enhanced using an inter-satellite link to a beacon satellite. Autonomous navigation includes the orbit determination of th...
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Article
Research of Hood on Maintaining Performance Balance Between Dent Resistance and Pedestrian Head Protection
In the developmental phase of passenger automobile hoods, it is crucial to take dent resistance and pedestrian head protection performances into account. And maintaining a performance balance between the two a...
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Article
Fast Shrinking parents-children learning for Markov blanket-based feature selection
High-dimensional data leads to degraded performance of machine learning algorithms and weak generalization of models, so feature selection is of great importance. In a Bayesian network (BN), the Markov blanket...
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A semi-active quasi-zero-stiffness vibration isolation system through controllable lateral spring stiffness
In this work, a semi-active quasi-zero-stiffness (QZS) vibration isolation system with controllable lateral springs was proposed and its practical vibration isolation effectiveness was demonstrated through the...
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The Adverse Effect and Control of Semi-active Inertial Suspension of Hub Motor Driven Vehicles
Recently, hub motor driven vehicles (HMDV) have been recognized as the ideal configuration of electric vehicles in the future. However, the adverse effect of its special structure configuration seriously affec...
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Vibration characteristics investigation of a dual rotor-bearing outer ring–pedestal-casing system with clearance fit
Due to thermal expansion of the mechanical structure, assembly processes, bearing wear, and long-term vibration during operation, a clearance fit may occur between the bearing outer ring and its pedestal. The ...
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Research on anti swing control method of four-rotor hanging load system under variable load conditions
This paper designs a controller based on the energy coupling combined with the adaptive principle to address the issues of swing and inaccurate positioning caused by load changes in a four-rotor hanging load s...
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Theoretical analysis, simulation, and experimental validation of dual synchronization vibrators with slanted elliptical trajectories and reduced swings
In the field of vibration screening, this work integrates both straight-line and circular vibration motions to generate slanted elliptical trajectories with reduced swings, and enhance transport and separation...
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Sodium-based Bentonite Slurry Improvement to Sandy Cobble Soil During Shield Excavation
Sandy cobble soil has characteristics including a large internal friction angle, high permeability coefficient, and poor fluidity, which can result in serious tool wear, groundwater spilling, and transportatio...
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Dynamic modeling considering time-varying contact pairs and parameterized defects of deep groove ball bearings for its vibration characteristic analysis
Bearing vibration characteristic analysis based on dynamic analytical model is of importance for identifying faults of bearing in mechanical systems. However, on one hand, the relationship between the raceway-...
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Investigation on the focusing and separation of polystyrene microbeads in an integrated microfluidic system using magnetized functionalized flexible micro-magnet arrays
Focusing and separation of cells by microfluidic techniques are significant steps in many applications, such as single-cell analysis and disease diagnosis. Among the microfluidic techniques, passive magnetopho...
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Article
Joint User Scheduling, Trajectory, Beamforming and Power Allocation for Millimeter-Wave Full-Duplex UAV Relay
With small size, low cost and high mobility, unmanned aerial vehicles (UAVs) are playing an increasingly important role in all areas of modern society. In this paper, a full-duplex (FD) UAV equipped with a lar...
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Interference Detection Method for Eye Tracking System in External Radiation Therapy
In the process of external radiation therapy, eye movements need to be detected in real time using an eye tracking system. The complex eye tracking system may interfere with the treatment radiation beam, so it...
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Article
Open AccessMagnetoactive, Kirigami-Inspired Hammocks to Probe Lung Epithelial Cell Function
Mechanical forces provide critical biological signals to cells. Within the distal lung, tensile forces act across the basement membrane and epithelial cells atop. Stretching devices have supported studies of m...
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A new MCDM integrating fuzzy rough set and TOPSIS method
In this paper, by integrating the advantages of multi-granulation fuzzy rough set (MGFRS) and variable precision fuzzy rough set (VPFRS), we introduce a new model of multi-granulation granular variable precisi...
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Article
Mechanical and dam** performances of TPMS lattice metamaterials fabricated by laser powder bed fusion
Lattice metamaterials based on three-period minimum surface (TPMS) are an effective means to achieve lightweight and high-strength materials which are widely used in various fields such as aerospace and ships....
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Article
Experimental determination of heat generation rates of lithium-ion batteries by thermal protection method
Experimental determination of heat generation rates is crucial in the thermal safety design of automotive batteries. A thermal protection method (TPM) is proposed to determine the heat generation rates of 1865...
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Design parameter optimization method for a prestressed steel structure driven by multi-factor coupling
To achieve efficient structural design, it is crucial to reduce the cost of materials while ensuring structural safety. This study proposes an optimization method for design parameters (DPs) in a prestressed s...
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Geometric quality evaluation of three-dimensional printable concrete using computational fluid dynamics
The importance of geometrical control of three dimensional (3D) printable concrete without the support of formwork is widely acknowledged. In this study, a numerical model based on computational fluid dynamics...
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Open AccessOptimal time reuse strategy-based dynamic multi-AGV path planning method
The window strategy, known for its flexibility and efficiency, is extensively used in dynamic path planning. To further enhance the performance of the Automated Guided Vehicles (AGVs) sorting system, the two p...
